Business
Engineering
Math
Science
Social ScienceAssume the random variable X is normally distributed with mean μ=50 and standard deviation σ=7.Find the 87th percentile.
Assume the random variable X is normally distributed with mean μ=50 and standard deviation σ=7.
Find the 87th percentile.
Expert Answer
Solution:
From the given information, mean value is 50, standard deviation value is 7. Let the random variable X follows normal distribution with population mean as 50 and standard deviation score as 7.
The 87th percentile is obtained below:
From Excel, NORM.INV(0.87,50,7)=57.8847.
...
Image Transcriptionclose
fNORM.INV(0.87,50,7) A1 A B C D F 1 57.8847
Math
Statistics
Related Statistics Q&A
Find answers to questions asked by student like you
Show more Q&A addQ: A sample selected by taking the members of the population that are easiest to reach is called a ____...
A: Convenience samplingA sample that is made up by people that are easy and very convenient to reach is...
Q: Durations of Pregnancies The lengths of pregnancies are normally distributed with a mean of 268 days...
A: Solution:The probability of a pregnancy lasting 308 days or longer is obtained below:The lengths of ...
Q: a psychologist theorized that people can hear better when they have just eaten a large meal. six ind...
A: Part a:Denote μ1 and μ2 as the means of the big meal group and the small meal group respectively.Nul...
Q: What is the p-value of a left-tailed one-mean hypothesis test, with a test statistic of z0=−1.19? Us...
A: From the given information, the test statistic value is -1.19 and one-mean hypothesis test is left-t...
Q: Lots of games like tennis have a concept of deuce, where if the game is ties at the end you have to ...
A: The probability of winning the game is obtained below:From the given information, there are two cons...
Q: A group takes a Personality test of Extraversion and they all take the test. They find that the grou...
A: It is given that the mean and standard deviation are 50 and 10, respectively.
Q: The random variable x is known to be uniformly distributed between 1.0 and 1.5. Show the graph...
A: a. Show the graph of the probability density function of Uniform distribution. From the given inform...
Q: Hi! I need help solving the attached question. This is my first time using Bartleby so please let me...
A: The test for equality of more than two variances is done with MINITAB software.The results are given...
Q: Find the percentage of data points that lie between -2.31 and 1.85.
A: Assuming the data follows standard normal distribution with mean 0 and standard Deviation 1Finding t...
